Durango 2WD V8-4.7L VIN N (2001)
contact point away from the fixed normally closed contact point, and holds it against the fixed normally open contact point. When the relay coil is
de-energized, spring pressure returns the movable contact point back against the fixed normally closed contact point. A resistor or diode is
connected in parallel with the relay coil in the relay, and helps to dissipate voltage spikes and electromagnetic interference that can be generated as
the electromagnetic field of the relay coil collapses.
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The rear wiper relay terminals are connected to the vehicle electrical system through a connector receptacle in the Power Distribution Center
(PDC). The inputs and outputs of the rear wiper relay include:
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The common feed terminal (30) is connected to the rear wiper motor through the rear wiper motor control circuit to the rear wiper motor.
When the rear wiper relay is de-energized, the common feed terminal is connected to ground through a take out and eyelet terminal connector
of the headlamp and dash wire harness that is secured by a nut to a ground stud located on the left front fender inner shield in the engine
compartment near the battery. When the rear wiper relay is energized, the common feed terminal of the relay is connected to battery current
from a fuse in the Power Distribution Center (PDC) through a fused B(+) circuit.
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The coil ground terminal (85) is connected to the relay control output of the CTM through the rear wiper relay control circuit. The CTM
controls the ground path for this circuit internally to energize or de-energize the rear wiper relay based upon its programming, electronic wiper
and washer switch state message inputs from the heater-air conditioner control, and a hard wired input from the rear wiper motor park switch.
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The coil battery terminal (86) is connected to battery current from a fuse in the PDC through a fused B(+) circuit at all times.
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The normally open terminal (87) is connected to battery current from a fuse in the PDC through a fused B(+) circuit at all times.
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The normally closed terminal (87A) is connected to ground through a take out and eyelet terminal connector of the headlamp and dash wire
harness that is secured by a nut to a ground stud located on the left front fender inner shield in the engine compartment near the battery.
The rear wiper relay can be diagnosed using conventional diagnostic tools and methods.
